Combined collapsible soda bottle and cap



FIG. 1 is a perspective view of a combined collapsible soda bottle and cap embodying my new design;

FIG. 2 is a front elevational view thereof, the rear and all side elevational views being identical to the front shown in FIG. 2;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a combined collapsible soda bottle and cap, as shown and described. 